32bb8c4b3a2d04dcc0ce32d67fd159663a0bc790f6f240b56b60c24b9f2f935c

Analysis

max time kernel
101s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2022 22:31

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General

Target

32bb8c4b3a2d04dcc0ce32d67fd159663a0bc790f6f240b56b60c24b9f2f935c.xls
Size

424KB
MD5

1380ff5db21e320b7cf1e041c418a889
SHA1

2e3d413e09f5f1d8f5e43678e907bcec46b62e3f
SHA256

32bb8c4b3a2d04dcc0ce32d67fd159663a0bc790f6f240b56b60c24b9f2f935c
SHA512

a2322ec61d0998189f29da1ef737b3954c45d4b8da08f725c799f2b9f8d5afe668d55c1cb83c4a0f89453c2d8c63084c789db48990e42d75b1d78d3395dae753
SSDEEP

6144:uQn6c7yRms1H757aZM3F1MKyWmrAETCCqv54/2+F9U4BvcE3:QCqvG+iWdU

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1076	3364	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3512	3364	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4460	3364	cmd.exe	79

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\82E65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3364	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE
3364	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 1076	3364	EXCEL.EXE	86
PID 3364 wrote to memory of 1076	3364	EXCEL.EXE	86
PID 3364 wrote to memory of 4460	3364	EXCEL.EXE	91
PID 3364 wrote to memory of 4460	3364	EXCEL.EXE	91
PID 3364 wrote to memory of 3512	3364	EXCEL.EXE	87
PID 3364 wrote to memory of 3512	3364	EXCEL.EXE	87
PID 1076 wrote to memory of 912	1076	cmd.exe	92
PID 1076 wrote to memory of 912	1076	cmd.exe	92

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
912	attrib.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\32bb8c4b3a2d04dcc0ce32d67fd159663a0bc790f6f240b56b60c24b9f2f935c.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1076
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:912
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:3512
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
  2⤵
  - Process spawned unexpected child process
  PID:4460

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3364-138-0x00007FF80F3E0000-0x00007FF80F3F0000-memory.dmp

Filesize
64KB

Download
memory/3364-133-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-136-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-137-0x00007FF80F3E0000-0x00007FF80F3F0000-memory.dmp

Filesize
64KB

Download
memory/3364-132-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-135-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-134-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-144-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-145-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-146-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download
memory/3364-147-0x00007FF811CF0000-0x00007FF811D00000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads